This book is a comparative study which aims to answer the question: under what circumstances does the EU undertake military operations? Since 2003, the EU has carried out six military operations. What accounts for this historic development? The EU and Military Operations examines the dynamics behind the EU´s collective use of force and situates the EU in the context of a global division of labour with regard to military crisis management. It centres on the study of two main cases of EU military operations: the non-case when an operation was planned in the Lebanon war 2006 but did not occur, and the positive case of EUFOR RD Congo that same year. Drawing upon these findings, the author creates an innovative analytical framework based upon the techniques of defence planning, and applies this to the cases studies with the purpose of identifying the main driving and inhibiting factors behind the operations. Key findings derived from this analysis include the growing importance of local actors in facilitating or impeding the EU´s deployment of military force and the enhanced role of regional organisations as security providers. The book will be of much interest to students of European security, EU politics, strategic studies, humanitarian intervention, security studies and IR in general.